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    • 1. 发明申请
    • PROJECTION DISPLAY SURFACE PROVIDING SPECKLE REDUCTION
    • 投影显示表面提供减少光斑
    • WO2011159588A1
    • 2011-12-22
    • PCT/US2011/040118
    • 2011-06-13
    • EASTMAN KODAK COMPANYSILVERSTEIN, Barry, D.MARCUS, Michael, AlanKURTZ, Andrew, F.
    • SILVERSTEIN, Barry, D.MARCUS, Michael, AlanKURTZ, Andrew, F.
    • H04N9/31G03B21/56G03B21/60
    • H04N9/3132G03B21/60G03B33/16
    • A projection display surface for reducing speckle artifacts from a projector having at least one narrow band light source having an incident visible wavelength band, wherein the incident visible wavelength band has an incident peak wavelength and an incident bandwidth, comprising: a substrate having a reflective layer that reflects incident light over at least the incident visible wavelength band; and a fluorescent agent distributed over the reflective layer, wherein the fluorescent agent absorbs a fraction of the light in the incident visible wavelength band and emits light in an emissive visible wavelength band having an emissive peak wavelength and an emissive bandwidth; wherein return light from the projection display surface produced when incident light in the incident visible wavelength band is incident on the projection display surface contains light in both the incident visible wavelength band and emissive visible wavelength band, thereby reducing speckle artifacts.
    • 一种投影显示表面,用于减少具有入射可见波长带的至少一个窄带光源的投影仪的散斑伪像,其中入射的可见波长带具有入射峰值波长和入射带宽,包括:具有反射层 至少反射入射可见波长带的入射光; 以及分布在所述反射层上的荧光剂,其中所述荧光剂吸收所述入射可见波长带中的一部分光并发射具有发射峰值波长和发射带宽的发射可见光波长带中的光; 其中,当入射到所述投影显示面上的入射光入射到所述投影显示面上时,来自所述投影显示面的返回光包含入射的可见波长带和发光可见波长带中的光,从而减少斑点伪像。